Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc59e978f5ef0a5…

MALICIOUS

PDF

80.5 KB Created: 2021-03-24 07:51:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 2d299a2878d6b5b6d3ca248788ff9faa SHA-1: ec03735b4b0c097027fa5baa7d25a7cae533c39b SHA-256: bcc59e978f5ef0a523e0aaa9776da9eda93bca91dc76539d547d7a3752761603
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://bologen.ru/strik?utm_term=the+song+movie+poster+app', suggests a phishing or malware distribution attempt disguised as a 'movie poster app'. While no scripts were explicitly extracted, the PDF structure and embedded URIs are commonly used to redirect users to malicious sites, aligning with spearphishing attachment tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/strik?utm_term=the+song+movie+poster+app PDF link annotation
    • https://cdn.sqhk.co/fujotojaxob/bijfgfo/fawoxibi.pdfIn PDF document text
    • https://cdn.sqhk.co/zubixola/ieiwp0F/1459315686.pdfIn PDF document text
    • https://cdn.sqhk.co/guledijuxi/ieicihU/likee_online_sign_up.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/I6fid4m/lesson_plan_format_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/whbialg/mr_love_queen_s_choice_kiro.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/jgeLNjd/machine_builder_salary.pdfIn PDF document text
    • http://vixitatevejiwo.getenjoyment.net/gapojokerigizewobafutid.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuvimi/lggOB3B/31096948822.pdfIn PDF document text
    • http://mofemaruwek.sportsontheweb.net/continents_and_oceans_map.pdfIn PDF document text
    • https://cdn.sqhk.co/keridola/Yha7sje/82297050751.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pobuwejugu.epizy.com/ruregoxapuvisumowo.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/jofajisebakite.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/bopodege.pdfIn PDF document text
    • http://ligifufeg.rf.gd/duzotigexoruxodibi.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/instagram_videos_shortcut.pdfIn PDF document text
    • http://texegap.epizy.com/mobixanul.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/architectural_ethnography.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/android_smartphone_3000_to_4000.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B4 5000 bytes
SHA-256: d6f547443c815a74c6229e36413d09277ee663c2d2ddee8c20fc645254963054
font_01_sfnt_off00010284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10284 10632 bytes
SHA-256: 08efa372eeebd557e53b31fdae13dc203059f61ff9db4a0a44614b53d0793697
font_02_sfnt_off000126c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126C6 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378